[PATCH 1/1] loader: Assert order in argv array

[Paris Oplopoios]

From: Paris Oplopoios

While the order that arguments are loaded by the kernel will never
change, some emulators may push argument pointers in a different
order which would cause a very large memset.
---
 loader/preloader.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/loader/preloader.c b/loader/preloader.c
index d0551bae63a..2ee36824303 100644
--- a/loader/preloader.c
+++ b/loader/preloader.c
@@ -1381,6 +1381,7 @@ static void set_process_name( int argc, char *argv[] )
     /* find the end of the argv array and move everything down */
     end = argv[argc - 1];
     while (*end) end++;
+    if (argv[1] < argv[0]) fatal_error( "argv[1] is located before argv[0]\n" );
     off = argv[1] - argv[0];
     for (p = argv[1]; p <= end; p++) *(p - off) = *p;
     wld_memset( end - off, 0, off );